I'm looking to add a Meross MSS550 3-way switch. My wiring matches this diagram. The Meross switch requires a Live, Neutral, Ground, and 2 traveler wires. It only requires the replacement of one switch, and I'm looking to replace the left switch in the diagram.
My question is if it's OK to rewire it such that the live Black wire from the source connects into the common terminal switch on the left? Subsequently can the Black wire from the Right switch connect with the Black wire leading to the light.
Based on that answer, I'll have the 5 wires identified to swapping out the left switch with my new Meross unit.